Spraying device



March 24, 1942. w. H. ROSE SPRAYING DEVICE Filed Feb. 28, 1941 2Sheets-Sheet 1 INVENT R. W 1/22 4 A T TOP/YE) HWHU . March 24, 1942.

w. H. ROSE 2,277,530

SPRAYING DEVICE Filed Feb. 28, 1941 2 Sheets-Sheet 2 E 22: wi 4% fPatented Mar. 24, 1942 UNITED STATES PATENT OFFICE 2,277,530 SPRAYINGDEVICE William H. Rose, Jersey City, N. J. Application February 28,1941, Serial No. 381,107

4 Claims.

My invention relates to spraying devices and refers particularly toliquid spraying devices.

One of the objects of my invention is a spraying device of convenientoperation and positive action..

Another object of my invention is a spraying device having a minimum ofmoving parts.

Another object of my invention is a spraying device in which a supply ofliquid is maintained within the device itself.

Another object of my invention is a spraying device in which there is acoil device for feeding the contained liquid to the exit opening.

Another object of my invention is a spraying device in which thefineness or coarseness of the discharged spray may be governed.

Another object of my invention is a spraying device in which the passagein the absorbent material through which air is forced to produce a spraycan be supported and maintained from closing, thus insuring a free anduniform passage of air irrespective of the number of times the devicehas been used.

Another object of my invention is a spraying device in which the amountof liquid fed to the air stream for the production of a spray may, notonly be regulated, but may'also be maintained during continued use.

The above-mentioned, and other, valuable features of my device will beevident upon a consideration of my specification and its accompanyingdrawings.

The forced passage of air through a mass of saturated absorbent materialin order to produce a liquid spray in spraying devices has thedisadvantage that after considerable use of the device, the air pressurepacks the absorbent material into such compactness as to seriouslyinterfere with the passage of air therethrough, thus reducing, and attimes preventing, the spraying I have overcome this seriousdisadvantage, by introducing a coil of material, such as of metal,through the absorbent material and passing the forced air through thiscoil. A liquid may readily pass into the coil interstices by capillaryattraction, or through the action of the plunger, while at the same timeit prevents all possibility of the absorbent material packing'or ofpreventing free 3.. passage of the forced air.

at each operation can be governed and controlled, which is not possiblewhen the air is forced through a mass of absorbent material, thephysical condition of which changes with use.

The construction of the devices of my invention presents many valuablefeatures over the former described devices adapted for spraying liquids.

In the accompanying drawings illustrating several modifications of mydevice, similar parts are designated by similar numerals.

In the accompanying drawings, Figure 1 is a vertical cross-section ofone form of a device of my invention.

Figure 2 is an enlarged cross-section of the absorbent material and coilelements of the device of Figure 1.

Figure 3 is a vertical cross-section of a modified form of a device ofmy invention.

Figure 4 is a vertical cross-section of a modified form of a device ofmy invention.

Figure 5 is a vertical cross-section of a modified form'of a device ofmy invention.

Figure 6 is a top view of a modified end element of Figure 5.

The particular form of the device of my invention illustrated in Figures1 and 2 comprises a cylindrical member ID, one end of which is closed bythe closure member ll, having a centrally positioned opening l2 therein.

Within the cylindrical member I0 is a plunger, 0r piston, comprising themember l3 of rubber, leather, fabric or other suitable material, havingthe two metallic discs I4 and 15 upon opposite sides thereof, and a rodI6 passing through centrally positioned openings in the members l3, l4and I5 and extending through the opening I! of the closure member H, theexterior end of the rod I6 carrying the handle IT.

The other end, or exit end, portion of the cylindrical member [0 iscovered by the fixedly attached closure member l8 having an opening I!therein.

Within the cylindrical member l0 and spaced from the end member I8 is afixedly attached partition 20 having an opening 2| therein, thus forminga chamber 22.

Within the chamber 22 is a disc 23 of absorbent material of felt,asbestos, or other suitable material and having an opening 24 therein. I

The opening IQ, of the member l8, the opening 2| of the member 20 andthe opening 24 of the member 23' are in alignment with each other and Iprefer that the opening 19 of the member Positioned below the chamber 22and fixedly attached to the cylindrical member I is a liquidreceptacle26 having a'tube 21 extending from the lower portion of the receptacle28 into the chamber 22 through an opening 29 in the lower portion of thecylindrical member ID.

The operation of the device is as follows:

In order to first charge the absorbent disc 23 with the liquid 28 in thereceptacle 28, the piston is moved inwardly and outwardly a few times,and during each such inward and outward movement a portion of the liquid28 is drawn upwardly through the tube 21 into contact with the absorbentdisc23.

When the disc 23 has been charged with the liquid 28 for the first time,the operation of the device is as follows: During the first charging ofthe disc 23, the liquid 28, by capillary attraction or otherwise, hasentered the interstices between the coil 25. An inward movement of theplunger member [3 will force this liquid outwardly through the openingI}! of the end member I8 in the form ofa fine spray and will at the sametime drawa supply of liquid 28 into the chamber 22 and the disc 23,through the tube 2'! and the outward movement will draw some of theliquid 28 from the disc 23 into the coil interstices and at the sametime draw an additional quantity of the liquid 28 through the tube 21into the chamber 22 and the absorbent disc 23.

It will thus be seen that the absorbent disc 23 will be constantlysupplied with the liquid 28,.and that the interstices of the coil 25will constantly have a supply of liquid 28 to be sprayed outwardlythrough the opening 19 of the member l8. I

- The modified form of my device shown in Figure 3 is similar to thatshown in Figures 1 and 2, except for convenience with one hand, thehandle I! is directed downwardly and a second handle 30 is positioned toallow of both handles l1 and 30 to be grasped by one hand,

,. the closing of which will force theplunger inwardly and the openingof the hand will allow the spring 3| 'to move the plunger outwardly. Asecond supporting guide member 32 is introduced as an additional guidewith the member I I.

The modified form of my device illustrated in Figure 4 is similar tothat shown in Figure 3, and is a one-hand operated device, in which thehandle 38 is grasped by the hand and the thumbs of the hand employed tomove the plunger inwardly by pressure upon the handle H.

The modified form of my device shown in Figure comprises a cylindricalmember having the enlarged portion 34, the reduced forward end portion35. The 35 rearward end portion of the cylindrical member 34 carries themember 38, extending outwardly 31, and then into the bulbous member 88,having an opening 39 therein. The end portion 38 is turned downwardlyforming the cap 48 having an opening 4| therein. A resilient" hollowrubber ball 42 is removably attached to the 36-31-38 as shown.

Positioned within the chambers 43 and 44,

-spray.

ball 42, will allow air to enter the device drawformed respectively bythe cylindrical elements 34 and 35 is a cylindrical absorbent member 48,having a longitudinal opening 48 therethrough. Positioned within theopening 48 is .a coil 41 similar to those previously described in thedevice of Figures 1 and 2. A removable closure cap 48 is carried by theextension portion 35.

The operation of this form of my device is as follows:

The rubber ball 42 is removed and suilicient liquid is introducedthrough the opening 38 to saturate the absorbent material 45 and therubber ball 42 is replaced and the cap 48 is removed. A collapsiblepressure will force air through the interstices of the coil 41 andoutwardly of the opening 4| in the end 48 in the form of a fine Therelease of the pressure upon the ing some or the liquid in the absorbentmaterial 45 into the coil interstices, in addition-to the naturalcapillary attraction of the strands. It is evident that this sprayingoperation may be continued as long as there is sufilcient liquid withinthe absorbent material.

Figure 6 represents a multi-opening element which can be substituted forthe single opening;

element 38 of Figure 5. It will thus be seen that my invention presents:spraying devices in which the amount of liquid subjected to the sprayingoperation may be governed and controlled and that this quantity ofliquid can be maintained during continued use.

I do not limit myself to the particular material, sizes, shapes, orpositions of parts specifical; 1y shown and described as these are givensolely for the purpose of clearly describing my invention.

What I claim is: e

1. In a spraying device, a liquid-containing compartment having an exitopening and being adapted to be connected to a source of air pres-,sure, a liquid absorbent material within said liquid-containingcompartment, a coiled member within said liquid absorbent materialdirected toward said exit opening, and means whereby air from said airsource is adapted to force liquid drawn from the spacebetween the coilsof said coiled member through said coiled member into said exit openingcausing said liquid to be emitted in the form of a spray.

2. In a spraying device, a liquid-containing compartment having an exitope i g and being adapted to be connected to a source of air pressure, aliquid supply container connected to said liquid-containing compartment,means adapted to draw liquid from said liquid supply container into saidliquid-containing compartment, a liquid absorbent material within saidliquid-containing compartment, a coiled member within said liquidabsorbent material directed to said exit opening,

v causing said liquid to be emitted in the form of a ing causing saidliquid to be emitted in the form of a spray.

4. In a spraying device, a liquid-containing compartment having an exitopening and being connected to a hollow rubber ball, a liquid supplycontainer connected to said liquid-containing compartment, means adaptedto draw liquid from said liquid supply container into saidliquidcontaining compartment, a liquid absorbent material within saidliquid-containing compartment, a coiledmember within said liquidabsorbent material directed to said exit opening and a rubber balladapted to force air through said coiled member causing said liquid tobe emitted in the form of a spray.

WILLIAM H. ROSE.

